% TTCREATEEXTERNALTRIGGGER   Associate an interrupt handler with%                            an external interrupt channel.%%  Usage: ttCreateExternalTrigger(handlername, latency)%%  Inputs:%    handlername  Name of the interrupt handler to be associated %                 with the external interrupt.%    latency      The time interval during which the interrupt %                 channel is insensitive to new invocations.%       % See also TTCREATEINTERRUPTHANDLER%%       TrueTime, Version 1.4%       Copyright (c) 2006%       Martin Ohlin, Dan Henriksson and Anton Cervin%       Department of Automatic Control, LTH%       Lund University, Sweden